Question

WILL FAN+MEDAL!!!!!!!!

Answer 1

https://static.k12.com/eli/bb/1761/4_80375/2_60569_5_80510/99ea1e2af2bdf9a85149ffb45d004694d8ee4d3d/media/98619e77934d356a23e2a269e8f60e1c921757fa/mediaasset_330014_1.gif

Answer 2

Use function notation to write the equation of the line.






f (x) = – x – 1



f (x) = –2x – 1



f (x) = 2x – 1



f (x) = –2x + 1

Answer 3

What is the y-intercept?
That means:
At what y-value does the line cross the y-axis?

Answer 4

1

Answer 5

@mathstudent55

Answer 6

Are you sure.
It is 1 unite BELOW the x-axis.
Are you sure that is 1?

Answer 7

Yes

Answer 8

Are you sure.
It is 1 unit BELOW the x-axis.
Are you sure that is 1?

Answer 9

Wouldn't is be -1?

Answer 10

Let me look.

Answer 11

Ok yeah -1 sorry

Answer 12

Ok. We have a y-intercept of -1.
The slope-intercept form of the equation of a line is:

\(y = mx + b\)

where b is the y-intercept.

Since we can see from the graph that the intercept is -1, we can
replace b with -1.

Our equation is going to be:

\(y = mx - 1\)

Now we need to find m, the slope.

Answer 13

BTW, we can already eliminate choice D, since choice D uses 1 for the y-intercept instead of -1.

Answer 14

2

Answer 15

Now we need to read the slope off the graph.
To do that, we need to find two points on the line that are easy to read.
Easy to read points on a line are points where the line passes over a grid intersection.

Answer 16

The slope is not 2.
We are going to find it very soon.

Answer 17

Can you read a point of the line that is easy to read?

Answer 18

-2